Can you increase the amount of memory on an IPhone?

I'm planning to get an IPhone 4S soon. The most memory that phone companies offer for it now is only 16 GBs. I was wondering if there's an option to increase the amount of memory on it & how much it would cost? Much appreciation for your help!

What you are referring to is storage - not memory, memory is something different.

No you can't increase the storage amount on the phone.

Nope.